I've been using this product for over a year, I think, first getting it from other suppliers, and then from iHerb when it started being carried here. I started taking one capsule every other day since it was so expensive. I started to put on muscle and switched to taking one capsule per day. I am 62 years-old and had noticed my ear canals starting to feel like they were getting mushy and contracting. That has reversed entirely. Whether or not these changes were do partly or mostly to this product, I do not really know, but I tend to think that it has had an important part to play.